<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src="/js/vue.js"></script>
</head>
<body>
    <div id="app">
        <counter>

        </counter>
    </div>
    <script type="text/x-template" id="x-btn">
        <button @click="num++">{{num}}次</button>
    </script>
    <script>
        //另一个定义模板的方法是在<script>元素中加上text/x-template类型
        //通过id进行引用
        Vue.component('counter',{
            data:function(){
                return{
                    num:0
                }
            },
            template:'#x-btn'
        })
        let vm = new Vue({
            el:'#app'
        })
    </script>
</body>
</body>
</html>